To be a Stotan (a cross between a Stoic and a Spartan) is to push one's physical and emotional capabilities beyond the limit, as four high school swimmers find out when they accept the challenge of a week-long endurance test devised by their coach. Though it is swim team captain Walker Dupree who narrates, this is every bit as much an ensemble novel as it is four individual stories. Each young man pursues a personal goal, but together the team pursues demons outside the group, ranging from an ""anonymous'' neo-Nazi association distributing offensive newspapers to the abusive father of one of the boys, who drives his son to suicide. But a demon bigger than any individual or group effort comes along when illness strikes one of these Stotan young men. Then the team finds out that you can't always make sense of everything, you can only go after it with your best shot. Crutcher has written an involving, realistic novel; though it deals with tough, unsolvable issues it is often leavened with humor. (12-up)